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Upon request we will provide documented appraisal work for any piece of jewelry purchased through Onyx.  Each appraisal includes three copies - one copy for your records, one copy to be presented to the insurance agency of your choice, one copy in which we keep on file.  Appraisal work can mailed to you upon completion, we can also provide the copy to your agency via email if provided with the email address of your agent.  When possible, we recommend your items be insured through a rider on your home owners or renters insurance policy. We are happy to appraise estate jewelry, vintage pieces and items purchased elsewhere - please contact us for rates on completing such appraisal work. 


Your jewelry may be brought in for cleaning at anytime.  We are happy to do a cleaning of pieces in-store to remove any topical debris such as lotion, hairspray and soap residue.  For a cleaning that will leave your pieces looking like the day they were purchased, jewelry can be put through a complete polish and refinishing process, completed by our bench jeweler, to remove surface scratches and other signs of wear. 


At Onyx, we offer the ability to bring any desired piece of jewelry to life, with our custom design services, for a look that is uniquely yours. From selecting stones and metal colors to overall aesthetic, all of our custom design projects go through a multi step process that includes: consultation, hand drawn sketches, CAD rendering, 3D wax model, to a finished piece created by our skilled jewelers who have been hand crafting our custom pieces for over 25 years.  


We have access to the worlds finest diamonds and colored gemstones.  We prefer to deal with GIA, certified diamonds.  Even with lab certification, all diamonds sourced by Onyx II are personally inspected to insure that they meet our quality standards.  It can be very common for two diamonds to look similar on paper in respect to grading, but look very different in person.  In addition to cut, color, and clarity we take into account, such details as type of imperfection and placement of imperfection to make sure that you end up with the most beautiful stone possible.  At your request, we can send heirloom diamonds and gemstones to the Gemological Institute of America for an official grading report for your records and piece of mind. 

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All engraving work is now completed with laser engraving.  Laser engraving allows for us to achieve the most crisp, clean and legible engraving work possible.  When requested and needed, hand engraving is also available. 


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We can’t guaranteed that something won’t go wrong with your jewelry throughout the lifetime of the piece, but we can help make it right in the event of damage or wear and tear.  All jewelry repair work is meticulously and expertly handled by our master bench jeweler, who we have trusted with our repair work and custom design projects for over 25 years.  To best evaluate the work your piece requires, we ask that you bring the item into our store for review, at which time we can discuss the options and plan of action for repairing your valued treasure.  We offer services ranging from ring sizing, stone tightening, prong re-tipping, to soldering, clasp repair, restoration and more - all depending on the specific needs of your piece.  


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We recommend that pearls and beads be strung, on average, every 10 years to prevent stretching and breakage.  We prefer to string our pearls and beads on silk, knotted between each segment, to ensure the integrity of the piece.  When needed, we offer stringing on other materials such as elastic chording, leather chording and wire.  Our expert pearl stringer has been trusted with our pearl and bead projects for over 15 years and also handles work for companies like Bergdorf Goodman and Ralph Lauren Fine Jewelry.


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Our expert watchmaker is certified to handle and repair any make of watch, with meticulous care and quality.  The extensive list of timepiece services offered are as follows: battery replacement, movement repair, component replacement, complete overhaul, crystal polishing & replacement,  refinishing, band sizing, strap replacement, clasp repair & replacement. 

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Please Note! We DO NOT buy unwanted, used, or scrap jewelry.  NO Exceptions!


Contact us with any questions about these and other service inquiries.

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